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Wilson Merritt
Physics
The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance
87 cm apart on the same axle. From the
angular displacement of 21.6◦
of the two bullet holes in the disks and the rotational speed
537 rev/min of the disks, we can determine
the speed of the bullet.
What is the speed of the bullet?
Answer in units of m/s.
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Laurel
Physics
Two resistors of 5.0 and 9.0 ohm are connected in parallel. A 4.0 ohm resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 5.0 ohm resistor?
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Landin Bean
Physics
Which scientist used cepheid variables to measure the distance to faint "nebulas" in our sky, proving they were actually whole other galaxies?
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Gia Holt
Physics
A man standing on a scale in an elevator notices that the scale reads 30 newtons greater than his normal weight. Which type of movement of the elevator could cause this greater-than-normal readings?
A) accelerating upward
B) accelerating downward
C) moving upward at constant speed
D) moving downward at constant speed
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Caitlin
Physics
When is the average velocity of an object equal to the instantaneous velocity?
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Penny
Physics
How does the generator effect work?
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Deborah
Physics
Penus and vagina make babies
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Clara Bautista
Physics
A current in a secondary coil is induced only if:
The primary coil carries a steady current.
The magnetic field is in motion with respect to the coil.
The magnetic field is perpendicular to the conductor.
The primary coil contains more turns.
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Lilah Petty
Physics
A wire is oriented along the axis. It is connected to two batteries, and a conventional current of 1.4 A runs through the wire in the direction. Along 0.20 m of the length of the wire there is a magnetic field of 0.58 T in the direction, due to a large magnet nearby. At other locations in the circuit, the magnetic field due to external sources is negligible. What are the direction and magnitude of the magnetic force on the wire
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Midnight
Physics
Find the quiotient of 36.56:40
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Jaylah Ibarra
Physics
Potential energy and kinetic energy are forms of what kind of energy? 1. chemical 2. nuclear 3. electromagnetic 4. heat 5. mechanical
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Kyan Merritt
Physics
Light behaves like a) a wave at times, and a particle at other times.
b) a wave.
c) a particle.
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Jada Fox
Physics
What is potential energy?
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Roselyn Reynolds
Physics
Which statement best describes conductors?
A. Lack free electrons that can move to other atoms
B. Electrons within their atoms are strongly held by the nuclei
C. Permits charged particles to move freely through it
D. Most electrons within their atoms are paired
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Fattykins
Physics
How was she able to divid 1567 into 5 cups?!!
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